Mission, TX

ZIP code 78573 serves Peñitas in western Hidalgo County, in the Lower Rio Grande Valley near the U.S.–Mexico border. The area is primarily residential and agricultural, with development concentrated along U.S. Highway 83. Local landmarks include Peñitas City Hall, the Peñitas Public Library, and La Joya ISD schools. The Rio Grande corridor is a prominent geographic feature, while the highway is the main east–west route through the community.